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# First we get a list of modules in the RTL path of the board's path.
# Next we check which modules not in the board's RTL path are in the root RTL
# path (modules which can be commonly instantiated, but over which board 
# build-specific versions take precedence.)

# Also generate list of verilog source files

# Paths under board/***/rtl/verilog we wish to exclude when getting modules
BOARD_VERILOG_MODULES_EXCLUDE += include
BOARD_VERILOG_MODULES_EXCLUDE += $(GATELEVEL_MODULES)
BOARD_VERILOG_MODULES_DIR_LIST=$(shell ls $(BOARD_RTL_VERILOG_DIR))
# Apply exclude to list of modules
BOARD_RTL_VERILOG_MODULES=$(filter-out $(BOARD_VERILOG_MODULES_EXCLUDE),$(BOARD_VERILOG_MODULES_DIR_LIST))

# Now get list of modules that we don't have a version of in the board path
COMMON_VERILOG_MODULES_EXCLUDE += include
COMMON_VERILOG_MODULES_EXCLUDE += $(BOARD_RTL_VERILOG_MODULES)
COMMON_VERILOG_MODULES_EXCLUDE += $(GATELEVEL_MODULES)

COMMON_RTL_VERILOG_MODULES_DIR_LIST=$(shell ls $(COMMON_RTL_VERILOG_DIR))
COMMON_RTL_VERILOG_MODULES=$(filter-out $(COMMON_VERILOG_MODULES_EXCLUDE), $(COMMON_RTL_VERILOG_MODULES_DIR_LIST))

# List of verilog source files (only .v files!)
# Board RTL modules first
RTL_VERILOG_SRC=$(shell for module in $(BOARD_RTL_VERILOG_MODULES); do if [ -d $(BOARD_RTL_VERILOG_DIR)/$$module ]; then ls $(BOARD_RTL_VERILOG_DIR)/$$module/*.v; fi; done)
# Common RTL module source
RTL_VERILOG_SRC +=$(shell for module in $(COMMON_RTL_VERILOG_MODULES); do if [ -d $(COMMON_RTL_VERILOG_DIR)/$$module ]; then ls $(COMMON_RTL_VERILOG_DIR)/$$module/*.v; fi; done)

# List of verilog includes from board RTL path - only for rule sensitivity
RTL_VERILOG_INCLUDES=$(shell ls $(BOARD_RTL_VERILOG_INCLUDE_DIR)/*.*)

# Debugging rules

print-board-modules:
        @echo echo; echo "\t### Board verilog modules ###"; echo
        @echo $(BOARD_RTL_VERILOG_MODULES)

print-common-modules-exclude:
        @echo echo; echo "\t### Common verilog modules being excluded due to board versions ###"; echo
        @echo "$(COMMON_VERILOG_MODULES_EXCLUDE)"

print-common-modules:
        @echo echo; echo "\t###  Verilog modules from common RTL dir ###"; echo
        @echo $(COMMON_RTL_VERILOG_MODULES)

print-verilog-src:
        @echo echo; echo "\t### Verilog source ###"; echo
        @echo $(RTL_VERILOG_SRC)